body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  font-family: PingFang-SC-Medium, PingFang-SC !important;
}

@media screen and (max-width: 319px) {
  html {

    font-size: 12px;

  }
}

@media screen and (min-width: 320px) and (max-width:359px) {
  html {

    font-size: 12.8px;

  }
}


@media screen and(min-width: 360px)and(max-width: 374px) {

  html {

    font-size: 14.4px;

  }
}

@media screen and(min-width: 375px)and(max-width: 385px) {

  html {

    font-size: 15px;

  }
}

@media screen and(min-width: 386px)and(max-width: 392px) {

  html {

    font-size: 15.44px;

  }
}

@media screen and(min-width: 393px)and(max-width: 400px) {

  html {
    font-size: 16px;
  }

}

@media screen and(min-width: 401px)and(max-width: 414px) {

  html {

    font-size: 16.48px;

  }

}

@media screen and(min-width: 1440px)and(max-width: 1920px) {

  html {

    font-size: 14px;

  }

}

@media screen and(min-width: 1441px) {

  html {

    font-size: 19px;

  }

}